Rocker side bearing.



G. A. JOHNSON.

ROLLER SIDE BEARING.

APPLICATION FILED FEB. 5. I91].

Patented Jan. 7, I919.

INVENTOR Fl/129L 14 70/2/1500 Z 6M %f I ATTO%Y WITNESSES:

ATES PATEn or GEORGE A. JOHNSON, OF CHICAGO, ILLINOIS, ASSIGNOR T WILLIAM H. MINER, 0F CHAZY, NEW YORK.

ROLLER SIDE BEARING.

Specification of Letters Patent.

Patented Jan. '7, 1919.

Application filed February 5, 1917. Serial No. 146,616.

To all whom it may concern:

Be it known that I, GEORGE A. JOHNSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Roller Side Bearings, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in roller side bearings.

The object of the invention is to provide a roller side bearing more particularly adapted for railway cars, and which consists of few parts of relatively inexpensive construction and so arranged as to minimize danger of getting out of order.

In the drawing forming a part of this specification, Figure 1 is a longitudinal section showing a side bearing embodying my improvements, the figure also showing 111 section, portions of a body bolster and a truck bolster of a car, and Fig. 2 is a trans verse sectional view of the side bearing and taken substantially on the line 22 of Fig. 1.

In said drawing, 10 denotes the truck bolster of a railway car to which the roller side bearing is preferably secured, and 11 indicates the body bolster of a car or bearing plate secured thereto.

In the drawing, I have shown the side bearing applied to the truck bolster, the side bearing comprising a base casting A, antifriction roller B, and combined spring and wear-plate C. The base casting A, as shown, is of substantially hollow box-like form and comprises parallel side walls 12-12, end walls 13-1-3, lower wall 14 having extended flanges 15-15 by which it is riveted or otherwise secured to the truck bolster. The side walls are preferably recessed, as indicated at 16, to facilitate the washing out or clearance of dirt or other foreign matter that might accumulate in the side bearing. At their upper ends, the end walls 13 are rovided with inwardly extending flanges 1 for a short distance, the latter at their extreme inner edges being beveled, as indicated at 18, to thereby form suitable stops to limit the movement of the roller B, as clearly indicated by the dotted lines in Fig. 1. The roller B is of usual construction and is adapted to roll in either direction from central or normal position. The roller is mounted on the plate 0 which has a lower horizontal bearing or wearing flat surface 19 riveted to the base casting A. At its ends, the mem ber C is provided with upwardly and inwardly extended curved leaf springs 20--20, both of the latter being preferably sli htly curled at their upper edges, as indicated at 21, where the same contact with the roller.

With the arrangement above described, it is apparent that the two leaf springs 20, which are formed integrally with the wear surface 19, will hold the roller in normal position when the roller is free from the body bolster 11. Then the roller is rolled to either side of normal, it is apparent that the corresponding leaf spring will be flexed outwardly and downwardly to the position indicated by dotted lines at 20 in Fig. 1, and upon release of the pressure on the roller the spring will throw the roller back to normal position. It will also be noted that the leaf springs 20 engage the roller at points above a horizontal plane, passing through the axis of the roller, thus serving to prevent the roller from being accidentally displaced.

I claim:

In a roller side bearing, the combination with a hollow casing, of a roller mounted within said casing, and a wear-plate on which said roller moves, said wear-plate being secured to the casing and having integral leaf spring portions at each end thereof extended to engage the opposite sides of the roller to maintain the latter in normal position.

In witness that I claim the foregoing I have hereunto subscribed my name this 81st day of Jan. 1917.

GEORGE A. JOHN-SON. Witness:

J osnrH Harms.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

